Gravity or the the tensioning of spacetime is like a residue force, that a mass deposits at a given point in space and time. Even if that mass vacates space near that point, by contracting for example, , that residue, the gravity, or tugging force stays stably behind at that location. Case in point: When matter contracts into a black hole singularity, the gravity as a residue condition, stays in place outside., even into the distance. However: Gravity becomes a projected force, similar to light, when it emanates from any body, even obeying the square over distance law, but In an entity, a spiral galaxy for example, that is being shaped by energy, being stretched into a rotating disk;-- . As such a disk forms, and flattens, --then, seen edge on, the light from such a disk would become more intense. At a stage of this flattening process, where a near "black disk" with near zero thickness develops, the outer stars would obscure the light from the inner, hidden background ones. (ignoring obscuring dust lanes) Brightness would only reach a certain limit. Not so with gravity! which passes through,and projects, penetrates through intervening matter. Remarkably like "Dark Matter"! so: There would be intense gravitational force projected out in the plane from the disk. therefore, Gravity at the perimeter, in the extended plane of a disk, does not strictly obey the square over distance law, but remains stronger, approaching the character of a 2 dimensional laser, retaining more of it's its intensity with distance. so: a) can gravity be a residue like it is around a black hole? and b) be a projected force , laser-like, outside the perimeter of a very thin disk? or c) both, in the in-between conditions we live in? Janus-like? and d) could Dark Matter in the "halos" be really mimicking gravity in its residual form? and e) could it really be Projecting Gravity that acts like DM as its penetrates our baryonic matter ? f) could the greater than usual outer orbital velocities in galaxies be caused by gravity as projected in more concentrated form? not subject to the square over distance law? refutations welcome.